等离子体激励翼型分离流动控制数值模拟  

Numerical Simulation of Plasma Control of Separated Flows over Airfoils

作　　者：翟琪[1] 张正科[1] 蔡晋生[1] 霍佳波 田永强[1] 

机构地区：[1]西北工业大学翼型叶栅国家重点实验室,陕西西安710072

出　　处：《气体物理》2016年第2期22-28,共7页Physics of Gases

摘　　要：文章利用CFD软件FLUENT中的自定义函数接口,将等离子体对中性气体的激励作用模型化为体积力引入Navier-Stokes方程,研究了等离子体气动激励诱导的平板射流,以及介质阻挡放电(dielectric barrier discharge,DBD)等离子体激励对NACA0015翼型大迎角分离流的控制作用.计算分析表明,多对电极等离子体激励器可以有效控制NACA0015翼型大迎角分离流动.Plasma actuator was modeled as body force vectors resulting from external electric field and net charge distribu- tion in plasma. Using FLUENT User Defined Function（UDF）, the body force was introduced to Navier-Stokes equations as source term to simulate the flat jet induced by plasma actuator, as well as the dielectric barrier discharge （DBD） plasma excitation of NACA0015 airfoil at large attack angle separation flow control. The simulation show that the multi electrode plasma actuator can control the flow separation of NACAO015 airfoil at high angle of attack effectively.

关 键 词：等离子体 流动控制 体积力 

分 类 号：O357.41[理学—流体力学]